public class question3_2{
	public static void main(String args[]){
	int i,j;
	for (j=2;j<=100;j++){
	for (i=2;i<=j/2;i++){
		if(j%i==0)
		break;
	}
	if(i>j/2){
		System.out.println(" "+j);
	}
}
}
}

